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NOTICE
Damage to the machine
Material damage can occur if you direct compressed air in the direction of the
shaft outlet or machine openings.
• Avoid pointing compressed air directly onto shaft sealing rings or labyrinth
Note
Please note the safety instructions for cleaning (Page 55).
7.1.8.5
Maintenance and repair for machines of protection type "Ex d/Ex db"
The machine marking based on IEC / EN 60079–0 was supplemented by the
"X" symbol.
• Maintain the special conditions for repairs. The gap dimensions for the
electric machine do not comply with the standardized values in IEC / EN
60079–1. For repair work, obtain the gap dimensions of the electrical
machine from the manufacturer.
• Perform maintenance, repair and modification work on explosion-protected
machines in strict compliance with the corresponding national health and
safety legislation, the safety instructions and descriptions in the general
maintenance instructions.
Work influencing explosion protection must be carried out by the
manufacturer or by a specialist workshop for electrical machinery authorized
by the manufacturer. This includes the following operations, for example:
• Repairs to the stator or rotor windings and to the terminals
• Repairs to the ventilation system
• Repairs to the bearings
• Dismantling machines with flameproof enclosures
• Connection work performed in the terminal box
The operations must be identified by an additional repair plate carrying the
following information:
• Date
• Company carrying out repair
• Type of repair
• Reference number of the repair technician regarding repair work
Testing after repair shall be carried out in accordance with EU directives.
seals of the machine.
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